Zeus became King of the Olympian gods, not because he was morally good or a creator god. Instead, he came to power in a cosmic war. He became the absolute ruler of the universe after overthrowing his father and by battling the Titans.

What made Zeus so powerful?

Zeus: God of the Sky, King of the Gods

There would be great droughts and floods, forcing the humans to pray to the gods for help. Zeus married Hera, his sister, and fellow Olympian, and had three children together. ... This made Zeus the strongest Greek god in Greek mythology.

How did Greek gods get their powers?

These Olympians had come to power after their leader, Zeus, overthrew his father, Kronos (or Cronus), leader of the Titans. All the Olympians are related to one another; their various relationships are themselves the subject of many Greek myths. ... There were many more deities in the Roman and Greek pantheons.